Question

Kevin has 13 new magazines to read. Let M be the number of magazines he would have left to read after reading R of them. Write an equation relating M to R. Then graph your equation using the axes below. What 2 points will I plot on the graph?

A) M = 13 - R; Points: (0, 13), (13, 0)
B) M = R - 13; Points: (0, -13), (13, 0)
C) M = R + 13; Points: (0, 13), (13, 26)
D) M = 13 + R; Points: (0, 13), (13, 26)

Answer 1

The equation relating the number of magazines left to read, M, to the number of magazines read, R, is M = 13 - R. Two points to plot on the graph are (0, 13) and (13, 0).

Step-by-step explanation:

The equation relating the number of magazines left to read, M, to the number of magazines read, R, is M = 13 - R. This means that the number of magazines left to read is equal to 13 minus the number of magazines read.

To graph this equation, you can plot two points on the coordinate plane. Let's choose two values for R and calculate the corresponding values for M:

When R = 0, M = 13 - 0 = 13. So the first point is (0, 13).

When R = 13, M = 13 - 13 = 0. So the second point is (13, 0).

Plotting these two points on the graph, you will get a straight line. The correct answer is A) M = 13 - R; Points: (0, 13), (13, 0)